60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause */
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#ifndef LIBPAYLOAD_DELAY_H
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#define LIBPAYLOAD_DELAY_H
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#include <stdint.h>
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#define NSECS_PER_SEC 1000000000
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#define USECS_PER_SEC 1000000
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#define MSECS_PER_SEC 1000
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#define NSECS_PER_MSEC (NSECS_PER_SEC / MSECS_PER_SEC)
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#define NSECS_PER_USEC (NSECS_PER_SEC / USECS_PER_SEC)
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#define USECS_PER_MSEC (USECS_PER_SEC / MSECS_PER_SEC)
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unsigned int get_cpu_speed(void);
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void arch_ndelay(uint64_t n);
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/**
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* Delay for a specified number of nanoseconds.
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*
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* @param ns Number of nanoseconds to delay for.
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*/
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static inline void ndelay(unsigned int ns)
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{
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arch_ndelay((uint64_t)ns);
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}
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/**
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* Delay for a specified number of microseconds.
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*
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* @param us Number of microseconds to delay for.
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*/
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static inline void udelay(unsigned int us)
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{
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arch_ndelay((uint64_t)us * NSECS_PER_USEC);
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}
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/**
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* Delay for a specified number of milliseconds.
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*
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* @param ms Number of milliseconds to delay for.
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*/
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static inline void mdelay(unsigned int ms)
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{
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arch_ndelay((uint64_t)ms * NSECS_PER_MSEC);
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}
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/**
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* Delay for a specified number of seconds.
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*
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* @param s Number of seconds to delay for.
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*/
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static inline void delay(unsigned int s)
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{
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arch_ndelay((uint64_t)s * NSECS_PER_SEC);
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}
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#endif /* LIBPAYLOAD_DELAY_H */
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